html{margin:0px;padding:0px;height:100%;max-height:100%;}
body{margin:0;padding:0;min-height:100%;_height:100%;position:relative;overflow:hidden;}
#middle{height:100%; width:6px;float:left; background:#1873aa;}
#middle img{width:6px; height:40px;margin-top:220px;cursor: pointer;} 